Answer: 2. Precipitation
Explanation:
Aerobic cellular respiration requores oxygen. Photosynthesis does, as well.
Answer:
B. the appearance of lichens and mosses in an area where a glacier has recently melted away
Explanation:
Ecological succession, which refers to the series of changes that occurs over time in an ecosystem, can be of two types namely: primary succession and secondary succession.
Primary succession is a succession that involves an area where no form of life has grown previously, hence, the area of land is barren e.g bare rock. Primary succession is first colonized by species called PIONEER SPECIES e.g. lichens, mosses etc.
According to this question, "the appearance of lichens and mosses (pioneer species) in an area where a glacier has recently melted away" is an example of PRIMARY SUCCESSION.
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Answer:
When a liquid is heated, the molecules gain energy. This means they move and vibrate more, causing them to escape in the atmosphere.
Answer:
Muscle contraction thus results from an interaction between the actin and myosin filaments that generates their movement relative to one another.